You need a separate license for the PSX import/export tools. In order to get a license, you need to be a PSX registered game developer with Sony.
You also need a PSX development console, not a regular PSX console.
The PSX import tools only accept HMD files which are used in development of games, not final release. That is, the HMD files are the source that get compiled into the resulting game. If you're not a game developer, you'll find the import/export tools fairly useless.
Matt
Matt Lind
Animator / Technical Director
Softimage certified instructor:
Softimage|3D
Softimage|XSI
speye_21@hotmail.com